I got a Devialet D250Pro many years ago mostly because it has a built in digital crossover option. I am crossing over around 140 to 200Hz and using an amp built from Hypex Nilai 500 modules for the low pass driving my woofers. A significant issue I have with Devialet crossover function is that their curves are not correct: the slopes are more shallow than the crossover order should (4th looks more like 16dB per octave) but more significantly it has an additional shallow slope at least 2 octaves before /after the crossover frequency. I just testing some analog active crossover kit from Xkitz (Linkewitz 24dB/octave) and the slopes are much closer to what one should except.
So I am thinking of getting a great dac and using this (or maybe there are even better ones) analog active crossover. The Nilai based amps are great for low frequencies but their behavior is less stellar at high frequencies as are the high power class D amps. The power requirements for the high pass (especially considering that there are no passive crossover elements waisting energy) are quite low.
Purify released recently an improved lower power module1ET6525SA but I have not seen any testing except their own data sheet https://purifi-audio.com/shop/1et65...,8197,8637,8199,8597,8638,8202,8203,8204,8205
GaN based class D amps have a higher switching frequencies which should theoretically improve high frequency performance but a lot of these are designed to mimic tube amps but I think the Orchard audio is likely not in that camp.They just came up with an improve version of their 150W module https://orchardaudio.com/shop/starkrimson-25-amplifier-module/ but I found no tests for that specific unit.
I would appreciate any comments about these amps or suggestion to alternatives for my specific requirements
So I am thinking of getting a great dac and using this (or maybe there are even better ones) analog active crossover. The Nilai based amps are great for low frequencies but their behavior is less stellar at high frequencies as are the high power class D amps. The power requirements for the high pass (especially considering that there are no passive crossover elements waisting energy) are quite low.
Purify released recently an improved lower power module1ET6525SA but I have not seen any testing except their own data sheet https://purifi-audio.com/shop/1et65...,8197,8637,8199,8597,8638,8202,8203,8204,8205
GaN based class D amps have a higher switching frequencies which should theoretically improve high frequency performance but a lot of these are designed to mimic tube amps but I think the Orchard audio is likely not in that camp.They just came up with an improve version of their 150W module https://orchardaudio.com/shop/starkrimson-25-amplifier-module/ but I found no tests for that specific unit.
I would appreciate any comments about these amps or suggestion to alternatives for my specific requirements